RT Journal Article SR Electronic T1 Quebec allows Vioxx class-action suit JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 20 OP 20 DO 10.1503/cmaj.061600 VO 176 IS 1 A1 Sibbald, Barbara YR 2007 UL http://www.cmaj.ca/content/176/1/20.1.abstract AB